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package jsf2.demo.scrum.web.controller;
import jsf2.demo.scrum.model.entities.Sprint;
import jsf2.demo.scrum.model.entities.Story;
import javax.annotation.PostConstruct;
import javax.annotation.PreDestroy;
import javax.faces.application.FacesMessage;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.ManagedProperty;
import javax.faces.bean.SessionScoped;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.validator.ValidatorException;
import javax.persistence.EntityManager;
import javax.persistence.Query;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
@ManagedBean(name = "storyManager")
@SessionScoped
public class StoryManager extends AbstractManager implements Serializable {
private static final long serialVersionUID = 1L;
@ManagedProperty("#{sprintManager}")
private SprintManager sprintManager;
private Story currentStory;
private DataModel<Story> stories;
private List<Story> storyList;
@PostConstruct
public void construct() {
init();
}
@PreDestroy
public void destroy() {
sprintManager = null;
currentStory = null;
stories = null;
if (null != storyList) {
storyList.clear();
storyList = null;
}
FacesContext.getCurrentInstance().getExternalContext().getSessionMap().remove("storyManager");
}
public void init() {
Sprint currentSprint = sprintManager.getCurrentSprint();
if (currentSprint != null) {
Story story = new Story();
setStoryList(new LinkedList<Story>(currentSprint.getStories()));
story.setSprint(currentSprint);
setCurrentStory(story);
} else {
setStoryList(new ArrayList<Story>());
}
stories = new ListDataModel<Story>(getStoryList());
}
public String create() {
Story story = new Story();
story.setSprint(sprintManager.getCurrentSprint());
setCurrentStory(story);
return "create";
}
public String save() {
if (currentStory != null) {
try {
Story merged = doInTransaction(new PersistenceAction<Story>() {
public Story execute(EntityManager em) {
if (currentStory.isNew()) {
em.persist(currentStory);
} else if (!em.contains(currentStory)) {
return em.merge(currentStory);
}
return currentStory;
}
});
if (!currentStory.equals(merged)) {
setCurrentStory(merged);
int idx = getStoryList().indexOf(currentStory);
if (idx != -1) {
getStoryList().set(idx, merged);
}
}
sprintManager.getCurrentSprint().addStory(merged);
if (!storyList.contains(merged)) {
getStoryList().add(merged);
}
} catch (Exception e) {
getLogger(getClass()).log(Level.SEVERE, "Error on try to save Story: " + currentStory, e);
addMessage("Error on try to save Story", FacesMessage.SEVERITY_ERROR);
return null;
}
}
return "show";
}
public String edit() {
setCurrentStory(stories.getRowData());
return "edit";
}
public String remove() {
final Story story = stories.getRowData();
if (story != null) {
try {
doInTransaction(new PersistenceActionWithoutResult() {
public void execute(EntityManager em) {
if (em.contains(story)) {
em.remove(story);
} else {
em.remove(em.merge(story));
}
}
});
sprintManager.getCurrentSprint().removeStory(story);
getStoryList().remove(story);
} catch (Exception e) {
getLogger(getClass()).log(Level.SEVERE, "Error on try to remove Story: " + currentStory, e);
addMessage("Error on try to remove Story", FacesMessage.SEVERITY_ERROR);
return null;
}
}
return "show";
}
public void checkUniqueStoryName(FacesContext context, UIComponent component, Object newValue) {
final String newName = (String) newValue;
try {
Long count = doInTransaction(new PersistenceAction<Long>() {
public Long execute(EntityManager em) {
Query query = em.createNamedQuery((currentStory.isNew()) ? "story.new.countByNameAndSprint" : "story.countByNameAndSprint");
query.setParameter("name", newName);
query.setParameter("sprint", sprintManager.getCurrentSprint());
if (!currentStory.isNew()) {
query.setParameter("currentStory", currentStory);
}
return (Long) query.getSingleResult();
}
});
if (count != null && count > 0) {
throw new ValidatorException(getFacesMessageForKey("story.form.label.name.unique"));
}
} catch (ManagerException ex) {
Logger.getLogger(StoryManager.class.getName()).log(Level.SEVERE, null, ex);
}
}
public String cancelEdit() {
return "show";
}
public String showTasks() {
setCurrentStory(stories.getRowData());
return "showTasks";
}
public Story getCurrentStory() {
return currentStory;
}
public void setCurrentStory(Story currentStory) {
this.currentStory = currentStory;
}
public DataModel<Story> getStories() {
if (sprintManager.getCurrentSprint() != null) {
this.stories = new ListDataModel<Story>(sprintManager.getCurrentSprint().getStories());
return stories;
} else {
return new ListDataModel<Story>();
}
}
public void setStories(DataModel<Story> stories) {
this.stories = stories;
}
public Sprint getSprint() {
return sprintManager.getCurrentSprint();
}
public void setSprint(Sprint sprint) {
sprintManager.setCurrentSprint(sprint);
}
/**
* @return the storyList
*/
public List<Story> getStoryList() {
if (sprintManager.getCurrentSprint() != null) {
this.storyList = sprintManager.getCurrentSprint().getStories();
}
return this.storyList;
}
/**
* @param storyList the storyList to set
*/
public void setStoryList(List<Story> storyList) {
this.storyList = storyList;
}
/**
* @return the sprintManager
*/
public SprintManager getSprintManager() {
return sprintManager;
}
/**
* @param sprintManager the sprintManager to set
*/
public void setSprintManager(SprintManager sprintManager) {
this.sprintManager = sprintManager;
}
}